US2309940A - Domestic washing machine - Google Patents
Domestic washing machine Download PDFInfo
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- US2309940A US2309940A US215361A US21536138A US2309940A US 2309940 A US2309940 A US 2309940A US 215361 A US215361 A US 215361A US 21536138 A US21536138 A US 21536138A US 2309940 A US2309940 A US 2309940A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/08—Control circuits or arrangements thereof
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry
- D06F23/06—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and rotating or oscillating about an inclined axis
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- DOMESTIC WASHING MACHINE Filed June 25, 1938 4 Sheets-Sheet 2 Patented Feb. 2, 1943 UNITED STATES PATENT OFFICE DOMESTIC WASHING MACHINE Peyton W. Douglas, Utica, N. Y., assignor to Westing'house Electric & Manufacturing Company, East Pittsburgh, Pa., a corporation of Pennsylvania Application June 23', 1938, Serial No. 215,361
- My invention relates to a domestic washing machine and I declare the following to be a full,
- the object of the invention is to provide a washing machine that can be placed in the kitchen, bathroom, basement or any other convenient location for the washing of soiled clothes. Furthermore, the machine is automatic in every respect. The operator simply puts into the machine a convenient amount of soiled clothes, closes the door, turns the timer control on one graduated dial to the number representing the refer to like parts minutes duration of the wash desired, on the draining the tub automatically and again opening the inlet valves and giving the clothes a spray-rinse, then spin-drying the clothes and again filling the tub with clean luke warm water giving the clothes an agitated rinse and emptying the tub and then spinning it for drying the clothes, damp dry, and at last stopping the machine, all automatically.
- Fig. 1 is a perspective view of the washing machine.
- Fig. 2 is a detail enlarged view showing certain temperature control means employed, parts being in section and parts in full.
- Fig. 3 is a, detail enlarged view showing a central section of a timing mechanism employed
- Fig. 4 is a detail enlarged view of a temperature dial employed.
- Fig. 5 is a detail enlarged view showing a central section of plunger shaft and immediate parts employed.
- Fig. 6 is a detail enlarged view showing parts in section and parts in full of the' clutch mechanism employed.
- Fig. 7 is a detail enlarged view, parts being in section and parts in full of a float valve employed.
- Fig. 8 is a detail enlarged view showing a central section of a pump and solenoid valve employed, parts being in full.
- Fig. 9 is a detail enlarged view showing a plane of a control switch employed.
- Fig. 10 is a diagrammatic view of the wiring employed.
- Fig. 11 is a central vertical section of the washing machine showing parts in full and parts in section.
- the washing machine embodies a casing I having a frame work of angle iron corner pieces 2, 2 and a bar 3 disposed across the frame work at the middle of the chamber 4.
- Bar 3 is anchoredor fastened at either end 5, 5 to suitable supporting angle irons 6 and 1 disposed across the center of the framework. They are fastened to the cor- I ner angle irons 2.
- a metal perforated basket I0 somewhat pear shaped is circular in cross section and is mounted to turn with thrust shaft II which has a hearing at I2 formed on bar 3.
- Bearing I2 is held in bearing block I3 composed of rubber to aid in eliminating vibration.
- Said bearing block I3 and bearing I2 therein are mounted rigidly in an aperture in bar 3.
- Shaft II is disposed at an angle to support basket I0 also at an angle as shown particularly in Fig. 11.
- the upper end of shaft I I is screw threaded at I5 to the base part I6 of basket I0.
- thrust bearing H has a casing I8 secured in a recess in vertical bar 6.
- a bracket 20 also aids in supporting casing I8.
- that hear at one end against the lower surface 22 of easing I8 and is held in place by screw plug 26 and at its upper end against ball 23.
- Ball 23 rests within a corresponding open socket 24 in the lower end of shaft II as shown in Figs. 5 and 11.
- will force shaft II and hasket I0 normally upward as well as to yieldingly support aportion of the weight of said basket.
- a counterweight fly wheel 25 is fixed to turn with shaft I I and is intended to balance the weight of the metal basket I0.
- An agitator 30 is formed integral with the base I 6 of basket I0. It has upstanding paddles 32 formed integral with the other parts of agitator 30. The upper surface'of agitator 30 is curved upwards to aid in forming said paddles 32. These curving sides serve in agitating the water in tank 35 and furthermore prevent the paddles 32 from whipping the water.
- the means for further preventing the basket I from vibrating and for holding it in correct position embodies an annular cover 40 which has a beveled edge 4I adapted to fit into the corresponding enlarged beveled edge adjacent the opening 42 of basket I0 and turns with said basket I0.
- Cover 40 is fastened to false or auxiliary cover 43 by a short headed shaft 44 which has a tight fit in cover 40 and a loose fit in bearing 45 mounted in auxiliary cover 43.
- An anti-friction ball 40 is disposed in bearing 45, whereby to aid in the rotation of the headed part 41 of shaft 44.
- the means for locking cover 40 and auxiliary cover 43 in closed position embodies handle 40 that is mounted to turn in auxiliary cover 43. It has a lug 49 that engages a cooperating lug 50 fastened rigidly to casing I.
- Said auxiliary cover 43 is pivoted to casing I by means of trunnions I, 5 I having bearings in upstanding bearing brackets 52, 52.
- Part 53of casing I in which cover 40 is located is disposed at an angle, whereby to allow the user to drop the clothes into the basket i0 without stooping over to do so. Also the operator can stop the machine and put in an extra amount of soiled clothes or take out any amount desired without letting water run out onto the floor.
- Basket I0 is located in a water tight chamber 35 formed by the partition wall 55 that narrows down to an annular depending drain part 51.
- removable perforated cylindrical open ended trap member 50 is disposed in part 51. Its sides are perforated, whereby to form a screen or filter to trap any foreign matters such as tooth picks and matches.
- the lower part of member 50 has screw threads 58a formed on the exterior surface which cooperate with the threads in the lower part of partition wall 56, whereby to hold trap member 58 in assembled position. There is sumcient room between the .djacent surfaces of trap 58 and wall 59 to allow water to pass but not pins or tooth picks which will lodge in trap 58. Trap 50 can be removed, whereby to empty said pins and tooth picks or other foreign matter.
- the annular wall of basket I0 is spaced from the surrounding stationary wall, whereby to leave an interrupting intervening pasageway for the free circulation of water.
- a drain pipe 50 is connected at one end with the lower end 'of part 5'! of wall 55 and at the other with pump GI.
- a second pipe 92 is connected at one end with pump 5! opposite the entrance of pipe 50 and leads outside of easing I to some source of drainage.
- a solenoid operated valve 69 is located in drainage pipe 50, whereby to allow the tank 35 to drain synchronously with the other processes performed by the washing machine as hereinafter described.
- Solenoid operated valve 53 embodies a casing 54 in which is located said valve 53.
- Casing 89 is connected to drain pipe 50. It has a valve seat 66.
- the vertical movement of valve 53, whereby to open and close the same is controlled by electric solenoid coil 51 connected by wires 50 and 69 with the electric wiring system, hereinafter described.
- Valve 83 will be elevated to allow for the drainage and when the solenoid 51 is demagnetized it will allow valve 53 to fall by gravity to close the drainage.
- contemplates a one-fourth or other suitable horse power electric motor I0.
- Motor is supported by a rod II having a rigid bearing at its upper end in bushing I2 mounted to frame bar I, and at its lower end in bearing 13 mounted to bar I.
- Clamping members I4, 14 are used to hold said motor 10 to rod I I.
- Motor 10 is used also to rotate basket I0.
- master shaft 15 which extends at one end into pump 6
- Clutch member 15 embodies a series of light discs 11 and 18 which are disposed alternately with each other. Said discs l1, l8 and end member 19 are housed in casing 80. Discs 11 are provided with extensions which project into suitable apertures 8
- discs I9 have central apertures with notches therein that fit over the sleeve member 05.
- Sleeve member 05 is mounted on master shaft 15 and is equipped with keys 88 formed integral therewith which fit into the notches in said discs 10, whereby said discs 10 will rotate with sleeve member 85. As stated above discs 11 turn with casing 80 and discs 10 with sleeve member 05.
- Sleeve member is caused to rotate with master shaft 15. For this reason the contiguous end of shaft 15 is flattened on opposite sides as 91, 81 and fits into the corresponding matrix of sleeve member 05. corresponding recess through which the flattened part of shaft 15 projects, whereby to cause said end member I9 to rotate with shaft I5. Apertures 90 are made in end member 19 to provide an oil inlet.
- the means for pushing discs 11 and 18 together into frictional contact with each other whereby they will turn as a unit embodies plunger member 9I which has a sliding fit in bearing 92 of frame 93. Its opposite end has embedded therein an anti-friction ball 99 which bears against the end of gear 95.
- Gear is mounted to turn with the extended part 94a of shaft 94.
- Shaft 94 has flattened opposite sides similar to the sides 81, 81 of shaft 15, and rests in and rotates with sleeve 85.
- Gear 95 has one end resting against spur gear 96 mounted to turn freely on reduced part 91 of sleeve 85.
- gear 96 is firmly fixed to casing 80, whereby said casing 80 will rotate therewith.
- a head 90 is rigidly fixed to the free end of plunger 9i.
- a coiled spring I00 is disposed between head 90 and the end of-bearing 92, whereby to force plunger 9! normally out to the left as shown in Fig. 6 and thereby disengage discs 11 and 18.
- a push upon the free end of plunger 9i will move gear 96 and casing 80 to the right, as shown in Fig, 6, and against the end member 19 mounted on that portion of master shaft I5 having the flattened sides 81, 81. Said member 19 will resist said push and thereby force said discs 11 and 10 into frictional engagement, whereby they will turn together to cause gear 96 to turn with master shaft I5.
- Gear 95 is in mesh with spur gear I05 which is mounted to turn with auxiliary shaft I05.
- Shaft I06 is carried in bearings I01 and in I08 having antifriction balls I08a mounted in casing 93.
- a key I09 formed integral with shaft I06 causes said gear I05 to turn with shaft I06.
- a spring IIO engaging an annular recess III in shaft I06 holds said gear I05 from moving longitudinally to the right as shown in Fig. 6.
- a spur gear H2 is mounted to turn idly upon auxiliary shaft I05.
- a locking disc 3 is disposed between spur gear I I2 and gear I05, where- End member 19 also has a by to cause said gear II2 to rotate with shaft I06 under certain circumstances now to be explained.
- Locking disc H3 has a threaded central aperture that engages the complementary threads I I6 formed on sleeve H6 which is keyed at I09 to turn with auxiliary shaft I06.
- a tooth I20 is formed integral with the lateral surface of locking disc H3 and engages an elongated recess I2l made in the lateral adjacent side of gear II2, whereby said gear H2 and locking disc II3 will turn together when said locking disc is in contact with gear II2.
- locking disc 3 is held yieldingly against gear 'I I2 by a wire I22 engaging an annular peripheral groove formed in disc H3 and is looped at one end about screw I23 mounted in the side of gear I I2.
- auxiliary shaft I06 will rotate faster when the power of the motor works through gears 96 and I05 than when it works through gears 95 and H2 because of the difference in ratio between said sets of gears.
- gear 96 is connected to turn with power shaft 15 and through gear I05 will rotate said auxiliary shaft I06.
- gear I I2 is connected to turn with power shaft 15 and through gear 95 and locking disc II3, it will rotate said auxiliary shaft I 06.
- longitudinally or to the right in Fig. 6 embodies rod I30 pivoted at its lower end I3I to bracket or support I32 and at its upper end to solenoid plunger I33 which is actuated by solenoid I34 similar to the one for actuating the valves, hereinafter described.
- Plunger I 33 is actuated to the left in Fig. 6 by coiled spring I34-a fastened at one end to the upper end of rod I30 and at the other to bar 3.
- a grooved'pulley I35 is mounted to turn with auxiliary shaft I06.
- a belt I36 connects pulley I35 with grooved pulley I31 carried to turn with plunger or thrust shaft II.
- the means for filling water tight chamber 35 with water embodies a casing I50 fastened rigidly o the inside surfaceof partition wall 56.
- the forward portion I5I is reduced in size and is equipped with apertures I52, whereby to allow to control the passage or water therethrough automatically.
- the means for automatically governing the temperature of the hot water supply embodies a .Sylphon" temperature regulator having a valve I seated at I66 in casing I61 which is joined to hot water supply pipe I56 for the passage 01' hot water therethrough.
- Valve I65 is connected to rod I60 that passes up through glands I10, I1I mounted in frame I12. Its upper end is screw threaded to depending, shaft I13.
- a cup shaped member I14 is fixed by a rivet or bolt I15 to the upperend of shaft I13. Cup shaped member I14 rests against the under surface of plate I16.
- Plate I8I is screw threaded to shaft I13, whereby to allow for vertical movement of said plate IN and the resultant adjustment of coiled spring I80.
- the means for holding valve I65 temporary in adjusted position embodies a cam I82 fixed to turn with shaft I83 which has a bearing at I84 in frame I 12 and at I81 in part 53 of easing I.
- a handle I85 is fixed to the outer end of shaft I83, whereby to turn cam I82 for adjusting the position of valve I65 relative to its seat I66.
- a graduated dial plate I86 showing the degrees from 90 to 140 and the words cold and fhot is displayed on plate I86, whereby to aid the operator when turning handle I85 to the degree of hot water desired.
- the means for automatically regulating valve I65 relative to its valve seat I66 embodies a thermostat bulb I90 disposed in casing I50.
- Bulb I90 contains, a thermo-sensitive liquid which gives off a vapor. thereby generating a pressure in bulb I90 relative to the temperature to which it is exposed.
- a flexible conduit I9I leads'from bulb I90 to the bellows or motor element I92 and transmits the pressure generated in the bulb I 90 to bellows I92.
- Bulb I90 will come in contact with the water entering cas ng I50, whereby to respond to any variation in temperature thereof.
- Bailie plates 1%, I94 are disposed in casing I50 at an angle to shield said bulb I90.
- Baffle I94 has apertures I95 therethrough at its lower end and bafile I93 at its upper end as at I96 and one aperture at I 91 adjacent the lower surface of casing I50.
- a pipe I55 emptycontemplates a solenoid actuated valve I60 as hereinabove more particularly described. Said valve I60 is joined to pipe I55, whereby the water will pass through said valve I60.
- solenoid I6I is joined to hot water pipe I56, whereby and dry ng embodies the usual clock mechanism comprising a cas ng 200 supporting a shaft 20I.
- a clock spring 202 engages shaft -20I .at one end and an upstanding stud 293flxed to the adjacent base part of casing 200 at the other end.
- An escapement member 203-a is pivoted to post 2l'3b upstanding from base part of casing 200 and en aging ratchet 203-e mounted to turn w th shaft 20I having a handle 20Ia.
- An escutcheon plate 204 is fastened to part 53 of eas ng I.
- a'master dial contact plate 205 made of Bakelite or other insulating material is mounted to turn with shaft 20I.
- Electric contacts 206,' 201, 208 and 209 are embedded in the top surface of dial plate 205.
- Contacts 206, 201, 208 and 209 are connected by a common wire 206a to shaft 20I.
- Wire 206a is imbedded in dial plate 205.
- points 2I0, 2I I, 2I2 and 2I3 are disposed above contacts 206, 201, 208 and 209 and are mounted on the free ends of spring clips 2I5.
- the opposite ends of these spring clips 2I5 are fastened to the top edge of casing 200 which is of a non-conductive material such as Bakelite.
- the innermost contact 206 is used for operating the motor 10; contact 201 for operating the clutch 16; contact 208 for operating the drainout valve 60; and contact 209 for operating the let-in valves I60 and I6I.
- a soap inlet 2I6 is made in the top of the easing I. It is closed normally by hinged cover 2I1.
- the means for controlling the drainage of water in tank 35 contemplates a separate auxiliary casing 220 secured in a water tight manner to the side of tank 35 and provided with an inlet 22I from said tank 35.
- a casing 222 is fastened to the inside of casing 220 above the water line for housing the electric contact switches 223 and 224.
- Switch 223 is connected at 225 to an electric wire hereinafter explained.
- the contact point is mounted on a spring member 221, whereas contact 224 is connected at 230 to an electric wire hereinafter explained.
- Its contact point 224 is disposed just above contact point 223. It is mounted on a spring member 23I.
- Rod 233 is pivoted at 234 to casing 220.
- a float 235 is screw mounted to the end of said rod 233. When the water is emptied from tank 35, float 235 will be down in dotted line position illustrated in Fig.
- the electric circuits shown diagrammatically in Fig. 10 are as follows: the electric circuit to motor 10 for rotating the basket I at a slow or washing speed starts at contact point 2I0 to spring clip arm 2I5, see Fig. 3, to wire 252 to motor terminal 253 to opposite terminal 254 to wire 255 to wire 2'" to terminal 251 of the 110 volt house circuit to opposite side of 110 volt house circuit to ground 258 to wire 259 to shaft 20I, see Fig. 3, wire 206a to contact 206 to contact 2I0 or starting point.
- solenoids I60 and I6I which operate the water inlet valves simultaneously with the starting of motor starts at M3 to spring clip arm 2I5, see Fig. 3, to wire 260 to wire 26I to the terminals 262, 263 respectively of solenoids I60 and I6I through said solenoids to terminals 264 and 265 respectively of said solenoids I60 and I6I to wires 266, 261 to wire 268 to terminal 230 of the float valve, see Figs. '1 and 11, through contacts 224 and 223, see Fig.
- the clutch circuit for speeding up the rotation of the basket I0 for drying purposes starts at contact point 2 ,to spring clip arm 2I5, see Fig. 3, to Wire 212 to clutch terminal 213 to opposite terminal 214 to wire 215 to wire 268 to float valve terminal 230, see Figs. 7 and 10, to terminal 225 to wire 269 to terminal 210 to wire 2" to terminal 251 of the 110 volt house circuit to ground 258 and back through wire 259 to post 20I to wire 206d to contact 201 to contact 2 or the starting point for the high speed cycle for drying.
- the electric circuit to the drain valve solenoid 63 starts at 2I2 to spring clip arm 2I5, see Fig. 3, to wire 216 through terminals 250 and 210 of solenoid 63 to wire 21I to terminal 251 through the 110 volt house circuit to ground 258 to wire 259 to contact 209 to wire 206a to contact 208 to contact 2I2 or starting point for draining.
- the operation of the device is effected by first setting the handle I to the temperature of water desired for the particular wash and then opening door 43, whereby the soiled clothes can be dropped into basket I0 without bending over to do so. After closing door 43 and locking it shut by turning handle 46 the-operator will then turn control handle 20Ia of shaft 20I to the time desired for the wash. Assuming it is turned to 10 on dial or escutcheon plate 204 which means that the machine will wash for 10 minutes. It will take however approximately ten minutes to complete the additional processes of rinsing and drying. The machine will go through the following cycles automatically. Contact point 2I0 will be in electric connection with segmental contact 206 which will electrify the circuit through motor 10 to start the said motor going. The motor 10 will continue to run until it reaches the break in the contact 206 at 280.
- contact 2I3 will be in electric connection with segmental contact 209, whereby to close the electric circuits above mentioned for controlling the solenoids I60 and I6I which will open the water inlet valves to allow the water to enter tank 35.
- the incoming water will continue to flow into tank 35 until float ball 235 raises with the water to a fixed position and then float ball 235 will break contacts 223 and 224, see Fig. '7, and thereby break the electric circuit through solenoids I60 and I6I thereby shutting off the flow of incoming water.
- the incoming water supply is shut off the operator then puts in enough soap through opening 2 I6 to cause a suds reaction.
- the machine will now Wash the soiled clothes at a slow rate of speed for the duration of ten minutes as wanted by the operator.
- contact 2I2 When the dial plate 205' has turned anti-clockwise for ten minutesto position 28I, contact 2I2 will come in electric connection with segmental contact 208, whereby to open drain valve 63, see Fig. 8 to drain the dirty soapy wash water out by gravity and with the aid of pump 6I through drain outlet pipes 60 and 62 to some outside source.
- the float ball 235 As the water level lowers in tank 220, see Fig. 7, the float ball 235 will lower also and when the water has been drained out of tank 35 and also float chamber 220 the float will cause lug 236 on arm 221 to push together contacts 223 and 224 thereby electrifying the solenoids I60 and I6I of the inlet water valves.
- pin 285 extending laterally from dial plate 205, see Fig. 3, will strike rod 206 pivotally mounted to casing 200 to sound the alarm.
- Rod 266 is held from sliding in casing 200 by bosses 208, 280.
- rod 286 When rod 286 is struck by pin 285 it will turn and thereby cause hammer 289 on the free end thereof to strike bell 200 fastimed to casing 200, whereby to sound the aforesaid alarm.
- Table leaf 30I is connected to cabinet I with small hinges 305 and 305 and supported by slide braces 302 and 302 which project through opening in cabinet I at point 304 and 304. Open notches 306 formed in the under side of braces 302, 302 will engag the contiguous edge of cabinet I to hold said braces 302 in extended position.
- a washing machine a casing for holding water, a cover on said casing, a basket disposed within said casing, a cover mounted on said basket and swiveled to the cover on said casing, a shaft yielding axially for supporting said basket, means for biasing said basket in the direction of the cover and means for rotating said basket at a relatively low speed for washing and at a relatively high speed .for drying.
- a casing for holding water, a cover on said casing, a basket disposed within said casing, a cover for said basket and swiveled to the cover on said casing, a shaft having its axis inclined at a substantial angle between the vertical and horizontal, said shaft yielding axially and attached to and supporting said basket, said cover being normal to said axis whensaid covers are in closed position, means for yieldingly biasing said basket upwardly towards said covers, said means acting to yieldingly support aportlon of the weight of said basket and means for rotating said basket at a relatively low speed for washing and at a relatively high speed for drying.
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Description
Feb. 2, 19453.
P. W. DOUGLAS DOMESTIC WASHING MACHINE 4 Sheets-Sheet 1 Filed June 23, 1938 8 1 24 3 g m V J I 6 0 0: 1M2 W 1 I W A w A, l m 5 M a w l F ch. 2, 1943.
P. w. DOUGLAS 2,309,940
DOMESTIC WASHING MACHINE Filed June 25, 1938 4 Sheets-Sheet 2 Patented Feb. 2, 1943 UNITED STATES PATENT OFFICE DOMESTIC WASHING MACHINE Peyton W. Douglas, Utica, N. Y., assignor to Westing'house Electric & Manufacturing Company, East Pittsburgh, Pa., a corporation of Pennsylvania Application June 23', 1938, Serial No. 215,361
2 Claims.
My invention relates to a domestic washing machine and I declare the following to be a full,
' clear, concise and exact description thereof sufllcient to enable anyone skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings in which like reference characters throughout the specification.
The object of the invention is to provide a washing machine that can be placed in the kitchen, bathroom, basement or any other convenient location for the washing of soiled clothes. Furthermore, the machine is automatic in every respect. The operator simply puts into the machine a convenient amount of soiled clothes, closes the door, turns the timer control on one graduated dial to the number representing the refer to like parts minutes duration of the wash desired, on the draining the tub automatically and again opening the inlet valves and giving the clothes a spray-rinse, then spin-drying the clothes and again filling the tub with clean luke warm water giving the clothes an agitated rinse and emptying the tub and then spinning it for drying the clothes, damp dry, and at last stopping the machine, all automatically.
The object will .be understood by referring to the drawings in which:
Fig. 1 is a perspective view of the washing machine.
Fig. 2 is a detail enlarged view showing certain temperature control means employed, parts being in section and parts in full.
Fig. 3 is a, detail enlarged view showing a central section of a timing mechanism employed,
Fig. 4 is a detail enlarged view of a temperature dial employed.
' Fig. 5 is a detail enlarged view showing a central section of plunger shaft and immediate parts employed.
Fig. 6 is a detail enlarged view showing parts in section and parts in full of the' clutch mechanism employed.
Fig. 7 is a detail enlarged view, parts being in section and parts in full of a float valve employed.
Fig. 8 is a detail enlarged view showing a central section of a pump and solenoid valve employed, parts being in full.
Fig. 9 is a detail enlarged view showing a plane of a control switch employed.
Fig. 10 is a diagrammatic view of the wiring employed.
Fig. 11 is a central vertical section of the washing machine showing parts in full and parts in section.
Referring more particularly to the drawings the washing machine embodies a casing I having a frame work of angle iron corner pieces 2, 2 and a bar 3 disposed across the frame work at the middle of the chamber 4. Bar 3 is anchoredor fastened at either end 5, 5 to suitable supporting angle irons 6 and 1 disposed across the center of the framework. They are fastened to the cor- I ner angle irons 2.
A metal perforated basket I0 somewhat pear shaped is circular in cross section and is mounted to turn with thrust shaft II which has a hearing at I2 formed on bar 3. Bearing I2 is held in bearing block I3 composed of rubber to aid in eliminating vibration. Said bearing block I3 and bearing I2 therein are mounted rigidly in an aperture in bar 3.
Shaft II is disposed at an angle to support basket I0 also at an angle as shown particularly in Fig. 11. The upper end of shaft I I is screw threaded at I5 to the base part I6 of basket I0.
The lower end of shaft II is mountedto turn in thrust bearing I'I, whereby to force said shaft II and basket I0 attached thereto normally upward. Moreover, thrust bearing H has a casing I8 secured in a recess in vertical bar 6. A bracket 20 also aids in supporting casing I8.
Within casing I8 is a coiled spring 2| that hear at one end against the lower surface 22 of easing I8 and is held in place by screw plug 26 and at its upper end against ball 23. Ball 23 rests within a corresponding open socket 24 in the lower end of shaft II as shown in Figs. 5 and 11. The compression of spring 2| will force shaft II and hasket I0 normally upward as well as to yieldingly support aportion of the weight of said basket. A counterweight fly wheel 25 is fixed to turn with shaft I I and is intended to balance the weight of the metal basket I0.
An agitator 30 is formed integral with the base I 6 of basket I0. It has upstanding paddles 32 formed integral with the other parts of agitator 30. The upper surface'of agitator 30 is curved upwards to aid in forming said paddles 32. These curving sides serve in agitating the water in tank 35 and furthermore prevent the paddles 32 from whipping the water.
The means for further preventing the basket I from vibrating and for holding it in correct position embodies an annular cover 40 which has a beveled edge 4I adapted to fit into the corresponding enlarged beveled edge adjacent the opening 42 of basket I0 and turns with said basket I0. Cover 40 is fastened to false or auxiliary cover 43 by a short headed shaft 44 which has a tight fit in cover 40 and a loose fit in bearing 45 mounted in auxiliary cover 43. An anti-friction ball 40 is disposed in bearing 45, whereby to aid in the rotation of the headed part 41 of shaft 44.
The means for locking cover 40 and auxiliary cover 43 in closed position. embodies handle 40 that is mounted to turn in auxiliary cover 43. It has a lug 49 that engages a cooperating lug 50 fastened rigidly to casing I.
Said auxiliary cover 43 is pivoted to casing I by means of trunnions I, 5 I having bearings in upstanding bearing brackets 52, 52. Part 53of casing I in which cover 40 is located is disposed at an angle, whereby to allow the user to drop the clothes into the basket i0 without stooping over to do so. Also the operator can stop the machine and put in an extra amount of soiled clothes or take out any amount desired without letting water run out onto the floor.
Basket I0 is located in a water tight chamber 35 formed by the partition wall 55 that narrows down to an annular depending drain part 51. A
removable perforated cylindrical open ended trap member 50 is disposed in part 51. Its sides are perforated, whereby to form a screen or filter to trap any foreign matters such as tooth picks and matches. The lower part of member 50 has screw threads 58a formed on the exterior surface which cooperate with the threads in the lower part of partition wall 56, whereby to hold trap member 58 in assembled position. There is sumcient room between the .djacent surfaces of trap 58 and wall 59 to allow water to pass but not pins or tooth picks which will lodge in trap 58. Trap 50 can be removed, whereby to empty said pins and tooth picks or other foreign matter. The annular wall of basket I0 is spaced from the surrounding stationary wall, whereby to leave an interrupting intervening pasageway for the free circulation of water.
A drain pipe 50 is connected at one end with the lower end 'of part 5'! of wall 55 and at the other with pump GI. A second pipe 92 is connected at one end with pump 5! opposite the entrance of pipe 50 and leads outside of easing I to some source of drainage. A solenoid operated valve 69 is located in drainage pipe 50, whereby to allow the tank 35 to drain synchronously with the other processes performed by the washing machine as hereinafter described.
Solenoid operated valve 53 embodies a casing 54 in which is located said valve 53. Casing 89 is connected to drain pipe 50. It has a valve seat 66. The vertical movement of valve 53, whereby to open and close the same is controlled by electric solenoid coil 51 connected by wires 50 and 69 with the electric wiring system, hereinafter described.
Valve 83 will be elevated to allow for the drainage and when the solenoid 51 is demagnetized it will allow valve 53 to fall by gravity to close the drainage.
The means for actuating pump 6| contemplates a one-fourth or other suitable horse power electric motor I0. Motor is supported by a rod II having a rigid bearing at its upper end in bushing I2 mounted to frame bar I, and at its lower end in bearing 13 mounted to bar I. Clamping members I4, 14 are used to hold said motor 10 to rod I I.
Sleeve member is caused to rotate with master shaft 15. For this reason the contiguous end of shaft 15 is flattened on opposite sides as 91, 81 and fits into the corresponding matrix of sleeve member 05. corresponding recess through which the flattened part of shaft 15 projects, whereby to cause said end member I9 to rotate with shaft I5. Apertures 90 are made in end member 19 to provide an oil inlet.
Furthermore, the means for pushing discs 11 and 18 together into frictional contact with each other, whereby they will turn as a unit embodies plunger member 9I which has a sliding fit in bearing 92 of frame 93. Its opposite end has embedded therein an anti-friction ball 99 which bears against the end of gear 95. Gear is mounted to turn with the extended part 94a of shaft 94. Shaft 94 has flattened opposite sides similar to the sides 81, 81 of shaft 15, and rests in and rotates with sleeve 85. Gear 95 has one end resting against spur gear 96 mounted to turn freely on reduced part 91 of sleeve 85. Moreover gear 96 is firmly fixed to casing 80, whereby said casing 80 will rotate therewith. A head 90 is rigidly fixed to the free end of plunger 9i. A coiled spring I00 is disposed between head 90 and the end of-bearing 92, whereby to force plunger 9! normally out to the left as shown in Fig. 6 and thereby disengage discs 11 and 18. A push upon the free end of plunger 9i will move gear 96 and casing 80 to the right, as shown in Fig, 6, and against the end member 19 mounted on that portion of master shaft I5 having the flattened sides 81, 81. Said member 19 will resist said push and thereby force said discs 11 and 10 into frictional engagement, whereby they will turn together to cause gear 96 to turn with master shaft I5.
A spur gear H2 is mounted to turn idly upon auxiliary shaft I05. A locking disc 3 is disposed between spur gear I I2 and gear I05, where- End member 19 also has a by to cause said gear II2 to rotate with shaft I06 under certain circumstances now to be explained.
Locking disc H3 has a threaded central aperture that engages the complementary threads I I6 formed on sleeve H6 which is keyed at I09 to turn with auxiliary shaft I06. A tooth I20 is formed integral with the lateral surface of locking disc H3 and engages an elongated recess I2l made in the lateral adjacent side of gear II2, whereby said gear H2 and locking disc II3 will turn together when said locking disc is in contact with gear II2. Moreover, locking disc 3 is held yieldingly against gear 'I I2 by a wire I22 engaging an annular peripheral groove formed in disc H3 and is looped at one end about screw I23 mounted in the side of gear I I2.
When power shaft 15 is working through gears 96 and I rather than gears 95 and H2 it will speed up the rotation of auxiliary shaft.l06. This increase in velocity of auxiliary shaft I06 will cause said locking dsc I I3 to move laterally away from said gear I I2 to the right as shown in dotted lines in Fig. 6. In this instance locking disc II3 will turn on the threads II5 of sleeve II6 away from gear .2. Tooth I20 of locking disc I I3 will clear recess I 2| in gear I I2 and simultaneously with the lateral movement of locking disc II3 to the right .in Fig. 6, gear 96 will turn with reduced part 91 of sleeve 85 and power shaft 15. Inasmuch as said gear- 96 is in mesh with gear 105, said auxiliary shaft I06 will rotate faster when the power of the motor works through gears 96 and I05 than when it works through gears 95 and H2 because of the difference in ratio between said sets of gears. When gear 2' idles on auxiliary shaft'l06, gear 96 is connected to turn with power shaft 15 and through gear I05 will rotate said auxiliary shaft I06. When gear 96 idles, gear I I2 is connected to turn with power shaft 15 and through gear 95 and locking disc II3, it will rotate said auxiliary shaft I 06.
The means for pushing plunger 9| longitudinally or to the right in Fig. 6 embodies rod I30 pivoted at its lower end I3I to bracket or support I32 and at its upper end to solenoid plunger I33 which is actuated by solenoid I34 similar to the one for actuating the valves, hereinafter described. Plunger I 33 is actuated to the left in Fig. 6 by coiled spring I34-a fastened at one end to the upper end of rod I30 and at the other to bar 3.
A grooved'pulley I35 is mounted to turn with auxiliary shaft I06. A belt I36 connects pulley I35 with grooved pulley I31 carried to turn with plunger or thrust shaft II.
The means for filling water tight chamber 35 with water embodies a casing I50 fastened rigidly o the inside surfaceof partition wall 56. The forward portion I5I is reduced in size and is equipped with apertures I52, whereby to allow to control the passage or water therethrough automatically.
1 The means for automatically governing the temperature of the hot water supply embodies a .Sylphon" temperature regulator having a valve I seated at I66 in casing I61 which is joined to hot water supply pipe I56 for the passage 01' hot water therethrough. Valve I65 is connected to rod I60 that passes up through glands I10, I1I mounted in frame I12. Its upper end is screw threaded to depending, shaft I13. A cup shaped member I14 is fixed by a rivet or bolt I15 to the upperend of shaft I13. Cup shaped member I14 rests against the under surface of plate I16.
A coiled spring I disposed between member I14 and adjustable plate I6I forces valve I65 normaliy downward-towards its seat I66. Plate I8I is screw threaded to shaft I13, whereby to allow for vertical movement of said plate IN and the resultant adjustment of coiled spring I80.
The means for holding valve I65 temporary in adjusted position embodies a cam I82 fixed to turn with shaft I83 which has a bearing at I84 in frame I 12 and at I81 in part 53 of easing I. A handle I85 is fixed to the outer end of shaft I83, whereby to turn cam I82 for adjusting the position of valve I65 relative to its seat I66. A graduated dial plate I86 showing the degrees from 90 to 140 and the words cold and fhot is displayed on plate I86, whereby to aid the operator when turning handle I85 to the degree of hot water desired.
The means for automatically regulating valve I65 relative to its valve seat I66 embodies a thermostat bulb I90 disposed in casing I50. Bulb I90 contains, a thermo-sensitive liquid which gives off a vapor. thereby generating a pressure in bulb I90 relative to the temperature to which it is exposed. A flexible conduit I9I leads'from bulb I90 to the bellows or motor element I92 and transmits the pressure generated in the bulb I 90 to bellows I92.
Bulb I90 will come in contact with the water entering cas ng I50, whereby to respond to any variation in temperature thereof. Bailie plates 1%, I94 are disposed in casing I50 at an angle to shield said bulb I90. Baffle I94 has apertures I95 therethrough at its lower end and bafile I93 at its upper end as at I96 and one aperture at I 91 adjacent the lower surface of casing I50.
A rise in the temperature of the water will effect the bellows I92, whereby valve I65 will move towards closing position or the position limited by cam I82 and vice versa. A fall in the temperature of the water will effect thebellows I92, whereby valve I65 will open and let in more hot water.
The means for automatically timing the dura- I tion of the several operations of washing, rinsing the water to fall into tank 35,. A pipe I55 emptycontemplates a solenoid actuated valve I60 as hereinabove more particularly described. Said valve I60 is joined to pipe I55, whereby the water will pass through said valve I60. Likewise, solenoid I6I, is joined to hot water pipe I56, whereby and dry ng embodies the usual clock mechanism comprising a cas ng 200 supporting a shaft 20I. A clock spring 202 engages shaft -20I .at one end and an upstanding stud 293flxed to the adjacent base part of casing 200 at the other end. An escapement member 203-a is pivoted to post 2l'3b upstanding from base part of casing 200 and en aging ratchet 203-e mounted to turn w th shaft 20I having a handle 20Ia.
An escutcheon plate 204 is fastened to part 53 of eas ng I. Therebeneath a'master dial contact plate 205 made of Bakelite or other insulating material is mounted to turn with shaft 20I. Electric contacts 206,' 201, 208 and 209 are embedded in the top surface of dial plate 205. Contacts 206, 201, 208 and 209 are connected by a common wire 206a to shaft 20I. Wire 206a is imbedded in dial plate 205. Corresponding contact; points 2I0, 2I I, 2I2 and 2I3 are disposed above contacts 206, 201, 208 and 209 and are mounted on the free ends of spring clips 2I5. The opposite ends of these spring clips 2I5 are fastened to the top edge of casing 200 which is of a non-conductive material such as Bakelite.
The innermost contact 206 is used for operating the motor 10; contact 201 for operating the clutch 16; contact 208 for operating the drainout valve 60; and contact 209 for operating the let-in valves I60 and I6I.
A soap inlet 2I6 is made in the top of the easing I. It is closed normally by hinged cover 2I1.
The means for controlling the drainage of water in tank 35 contemplates a separate auxiliary casing 220 secured in a water tight manner to the side of tank 35 and provided with an inlet 22I from said tank 35.
A casing 222 is fastened to the inside of casing 220 above the water line for housing the electric contact switches 223 and 224. Switch 223 is connected at 225 to an electric wire hereinafter explained. The contact point is mounted on a spring member 221, whereas contact 224 is connected at 230 to an electric wire hereinafter explained. Its contact point 224 is disposed just above contact point 223. It is mounted on a spring member 23I. Rod 233 is pivoted at 234 to casing 220. A float 235 is screw mounted to the end of said rod 233. When the water is emptied from tank 35, float 235 will be down in dotted line position illustrated in Fig. '7, whereby the lug 236 fastened to arm 232 will make contact with the underside of spring 221 and force it upward into dotted line position illustrated in Fig. '7. In this latter position of spring 221, electrical contact point 223 will be in electrical contact with point 224, whereby to close an electric circuit through solenoids I60 and I6I to open the water inlet valves.
The electric circuits shown diagrammatically in Fig. 10 are as follows: the electric circuit to motor 10 for rotating the basket I at a slow or washing speed starts at contact point 2I0 to spring clip arm 2I5, see Fig. 3, to wire 252 to motor terminal 253 to opposite terminal 254 to wire 255 to wire 2'" to terminal 251 of the 110 volt house circuit to opposite side of 110 volt house circuit to ground 258 to wire 259 to shaft 20I, see Fig. 3, wire 206a to contact 206 to contact 2I0 or starting point.
The electric circuit to solenoids I60 and I6I which operate the water inlet valves simultaneously with the starting of motor starts at M3 to spring clip arm 2I5, see Fig. 3, to wire 260 to wire 26I to the terminals 262, 263 respectively of solenoids I60 and I6I through said solenoids to terminals 264 and 265 respectively of said solenoids I60 and I6I to wires 266, 261 to wire 268 to terminal 230 of the float valve, see Figs. '1 and 11, through contacts 224 and 223, see Fig. 7, to terminal 225 to wire 269 to terminal 210 to wire 21I to terminal 251 through the 110 volt house circuit to ground 258 and back through wire 259 to post I to wire 206a to contact 209 to contact 2I3 or the starting point for the inlet solenoid water valves I6I and I60.
The clutch circuit for speeding up the rotation of the basket I0 for drying purposes starts at contact point 2 ,to spring clip arm 2I5, see Fig. 3, to Wire 212 to clutch terminal 213 to opposite terminal 214 to wire 215 to wire 268 to float valve terminal 230, see Figs. 7 and 10, to terminal 225 to wire 269 to terminal 210 to wire 2" to terminal 251 of the 110 volt house circuit to ground 258 and back through wire 259 to post 20I to wire 206d to contact 201 to contact 2 or the starting point for the high speed cycle for drying.
The electric circuit to the drain valve solenoid 63 starts at 2I2 to spring clip arm 2I5, see Fig. 3, to wire 216 through terminals 250 and 210 of solenoid 63 to wire 21I to terminal 251 through the 110 volt house circuit to ground 258 to wire 259 to contact 209 to wire 206a to contact 208 to contact 2I2 or starting point for draining.
The operation of the device is effected by first setting the handle I to the temperature of water desired for the particular wash and then opening door 43, whereby the soiled clothes can be dropped into basket I0 without bending over to do so. After closing door 43 and locking it shut by turning handle 46 the-operator will then turn control handle 20Ia of shaft 20I to the time desired for the wash. Assuming it is turned to 10 on dial or escutcheon plate 204 which means that the machine will wash for 10 minutes. It will take however approximately ten minutes to complete the additional processes of rinsing and drying. The machine will go through the following cycles automatically. Contact point 2I0 will be in electric connection with segmental contact 206 which will electrify the circuit through motor 10 to start the said motor going. The motor 10 will continue to run until it reaches the break in the contact 206 at 280.
Simultaneously with the running of the motor 10, contact 2I3 will be in electric connection with segmental contact 209, whereby to close the electric circuits above mentioned for controlling the solenoids I60 and I6I which will open the water inlet valves to allow the water to enter tank 35. The incoming water will continue to flow into tank 35 until float ball 235 raises with the water to a fixed position and then float ball 235 will break contacts 223 and 224, see Fig. '7, and thereby break the electric circuit through solenoids I60 and I6I thereby shutting off the flow of incoming water. As soon as the incoming water supply is shut off the operator then puts in enough soap through opening 2 I6 to cause a suds reaction. The machine will now Wash the soiled clothes at a slow rate of speed for the duration of ten minutes as wanted by the operator.
When the dial plate 205' has turned anti-clockwise for ten minutesto position 28I, contact 2I2 will come in electric connection with segmental contact 208, whereby to open drain valve 63, see Fig. 8 to drain the dirty soapy wash water out by gravity and with the aid of pump 6I through drain outlet pipes 60 and 62 to some outside source. As the water level lowers in tank 220, see Fig. 7, the float ball 235 will lower also and when the water has been drained out of tank 35 and also float chamber 220 the float will cause lug 236 on arm 221 to push together contacts 223 and 224 thereby electrifying the solenoids I60 and I6I of the inlet water valves. Simultaneously therewith contact 2I3, see Figs 3 and 9, will contact segmental contact 209 to open the inlet water supply through solenoids I60 and I6I controlling said inlet valves; thereby giving the clothes in basket I0 a spray rinsing. This spray rinsing continues until contact 2I3 breaks with contact 209 at point 210 and at that same point contact 2I I comes in contact with segmental contact 201 electrifying the clutch solenoid I34, see
Figs. 9 and 11, and thereby transfer the power of master shaft I5 from gears 05, II2 to 96 and I05 to rotate basket I at a higher speed for drying purposes. This higher speed will continue until contact 2 breaks with contact 201 at location 213. From location 28I .to 213 on the dial plate 205 the drain solenoid 63 has been open to let the rinse and drying water out through pipes 60 and 62 by aid of pump 6!.
When the dial plate 205 has turned to position 213 contact 2I3 will come into contact with segmental contact 209 to electrify the solenoids I60 and I6! of the inlet water valves to allow the rinse water to. enter tank 35, which will stay in tank 35 for about four minutes whereby to give the clothes an agitated rinse. This incoming rinse water will .be shut ofl at the proper time by float ball 235 raising to such a position on the water levelto break contacts 223 and 224 thereby breaking the electric circuit to solenoids I60 and I00 of the inlet water valves which then will be closed.
When the master contact dial 205 has turned to position 214 contact 2| 2 will come into contact with segmental contact 208 and thereby electrify' the drain solenoid 63 controlling drain valve 66 which will open and let the rinse water out. As soon as the rinse water has drained the float ball 235 will be lowered and thereby press together contacts 223 and 224, whereby to close the electric circuit to the clutch I0. This will electrify the clutch solenoid I 34, whereby to start the machine into a drying spin of much faster speed, as heretofore mentioned, to give the clothes a final drying. This operation will continue until dial plate 205 reaches the position 200 where all contacts are broken and the entire operation has come to an end. At this instant pin 285 extending laterally from dial plate 205, see Fig. 3, will strike rod 206 pivotally mounted to casing 200 to sound the alarm. Rod 266 is held from sliding in casing 200 by bosses 208, 280. When rod 286 is struck by pin 285 it will turn and thereby cause hammer 289 on the free end thereof to strike bell 200 fastimed to casing 200, whereby to sound the aforesaid alarm.
The operator now opens door 43 and lays the clean clothes on table leaf 30I which has been raised in the meantime to a horizontal position thereby preventing any of the clothes from dropping on the floor. Table leaf 30I is connected to cabinet I with small hinges 305 and 305 and supported by slide braces 302 and 302 which project through opening in cabinet I at point 304 and 304. Open notches 306 formed in the under side of braces 302, 302 will engag the contiguous edge of cabinet I to hold said braces 302 in extended position. v
On panel 53 of casing I are two inspection glass covered openings 406 to make visible the interior of tub 35. These two openings are covered with pyrex glass and fitted, whereby not to leak. Line M0 is to advise the operator that there is a low soap level in basket I0 and line 4 I I is to advise the operator that there is sufiicient soad suds in the machine. These two glass windows will allow the operator to watch the operation of the water action during the washing process.
Having thus described my invention what I claim as new and desire to secure by Letters Patent is as follows:
1. In a washing machine, a casing for holding water, a cover on said casing, a basket disposed within said casing, a cover mounted on said basket and swiveled to the cover on said casing, a shaft yielding axially for supporting said basket, means for biasing said basket in the direction of the cover and means for rotating said basket at a relatively low speed for washing and at a relatively high speed .for drying.
2. In a washing machine. a casing for holding water, a cover on said casing, a basket disposed within said casing, a cover for said basket and swiveled to the cover on said casing, a shaft having its axis inclined at a substantial angle between the vertical and horizontal, said shaft yielding axially and attached to and supporting said basket, said cover being normal to said axis whensaid covers are in closed position, means for yieldingly biasing said basket upwardly towards said covers, said means acting to yieldingly support aportlon of the weight of said basket and means for rotating said basket at a relatively low speed for washing and at a relatively high speed for drying. v
PEY'I'ON W. DOUGLAS.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US215361A US2309940A (en) | 1938-06-23 | 1938-06-23 | Domestic washing machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US215361A US2309940A (en) | 1938-06-23 | 1938-06-23 | Domestic washing machine |
Publications (1)
Publication Number | Publication Date |
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US2309940A true US2309940A (en) | 1943-02-02 |
Family
ID=22802682
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US215361A Expired - Lifetime US2309940A (en) | 1938-06-23 | 1938-06-23 | Domestic washing machine |
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2425788A (en) * | 1943-11-05 | 1947-08-19 | Westinghouse Electric Corp | Laundry apparatus |
US2503433A (en) * | 1945-01-24 | 1950-04-11 | Westinghouse Electric Corp | Basket and shaft structure for clothes washing machines |
US2547238A (en) * | 1947-08-12 | 1951-04-03 | Tremblay Gerard | Drying apparatus |
US2639601A (en) * | 1949-12-15 | 1953-05-26 | Miller Herman | Swingable door for tumbler type clothes washing machines |
US2645548A (en) * | 1948-05-21 | 1953-07-14 | Standard Telephones Cables Ltd | Cabinet structure for washing machines |
US2706899A (en) * | 1950-12-04 | 1955-04-26 | Henry C A Meyer | Laundry machines |
US2708293A (en) * | 1951-07-21 | 1955-05-17 | Easy Washing Machine Corp | Hinged door constructions |
US2754670A (en) * | 1952-10-06 | 1956-07-17 | Jefferson J Lawson | Laundry equipment |
US3093842A (en) * | 1957-11-08 | 1963-06-18 | Ametek Inc | Laundry method |
US20030051514A1 (en) * | 1999-08-18 | 2003-03-20 | Lg Electronics Inc. | Washing machine |
US6539753B1 (en) * | 1999-03-31 | 2003-04-01 | Kabushiki Kaisha Toshiba | Drum type washing machine |
-
1938
- 1938-06-23 US US215361A patent/US2309940A/en not_active Expired - Lifetime
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2425788A (en) * | 1943-11-05 | 1947-08-19 | Westinghouse Electric Corp | Laundry apparatus |
US2503433A (en) * | 1945-01-24 | 1950-04-11 | Westinghouse Electric Corp | Basket and shaft structure for clothes washing machines |
US2547238A (en) * | 1947-08-12 | 1951-04-03 | Tremblay Gerard | Drying apparatus |
US2645548A (en) * | 1948-05-21 | 1953-07-14 | Standard Telephones Cables Ltd | Cabinet structure for washing machines |
US2639601A (en) * | 1949-12-15 | 1953-05-26 | Miller Herman | Swingable door for tumbler type clothes washing machines |
US2706899A (en) * | 1950-12-04 | 1955-04-26 | Henry C A Meyer | Laundry machines |
US2708293A (en) * | 1951-07-21 | 1955-05-17 | Easy Washing Machine Corp | Hinged door constructions |
US2754670A (en) * | 1952-10-06 | 1956-07-17 | Jefferson J Lawson | Laundry equipment |
US3093842A (en) * | 1957-11-08 | 1963-06-18 | Ametek Inc | Laundry method |
US6539753B1 (en) * | 1999-03-31 | 2003-04-01 | Kabushiki Kaisha Toshiba | Drum type washing machine |
US20030051514A1 (en) * | 1999-08-18 | 2003-03-20 | Lg Electronics Inc. | Washing machine |
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